terminator/terminatorlib/terminator.py

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#!/usr/bin/python
# Terminator by Chris Jones <cmsj@tenshu.net>
# GPL v2 only
"""terminator.py - class for the master Terminator singleton"""
import copy
import os
import gtk
from borg import Borg
from config import Config
from keybindings import Keybindings
from util import dbg, err, enumerate_descendants
from factory import Factory
from cwd import get_pid_cwd
from version import APP_NAME, APP_VERSION
class Terminator(Borg):
"""master object for the application"""
windows = None
windowtitle = None
terminals = None
groups = None
config = None
keybindings = None
origcwd = None
pid_cwd = None
gnome_client = None
debug_address = None
doing_layout = None
groupsend = None
groupsend_type = {'all':0, 'group':1, 'off':2}
def __init__(self):
"""Class initialiser"""
Borg.__init__(self, self.__class__.__name__)
self.prepare_attributes()
def prepare_attributes(self):
"""Initialise anything that isn't already"""
if not self.windows:
self.windows = []
if not self.terminals:
self.terminals = []
if not self.groups:
self.groups = []
if self.groupsend == None:
self.groupsend = self.groupsend_type['group']
if not self.config:
self.config = Config()
if not self.keybindings:
self.keybindings = Keybindings()
self.keybindings.configure(self.config['keybindings'])
if not self.doing_layout:
self.doing_layout = False
if not self.pid_cwd:
self.pid_cwd = get_pid_cwd()
if self.gnome_client is None:
self.attempt_gnome_client()
def set_origcwd(self, cwd):
"""Store the original cwd our process inherits"""
if cwd == '/':
cwd = os.path.expanduser('~')
os.chdir(cwd)
self.origcwd = cwd
def attempt_gnome_client(self):
"""Attempt to find a GNOME Session to register with"""
try:
import gnome
import gnome.ui
self.gnome_program = gnome.init(APP_NAME, APP_VERSION)
self.gnome_client = gnome.ui.master_client()
self.gnome_client.connect_to_session_manager()
self.gnome_client.connect('save-yourself', self.save_yourself)
self.gnome_client.connect('die', self.die)
dbg('GNOME session support enabled and registered')
except ImportError:
self.gnome_client = False
dbg('GNOME session support not available')
def save_yourself(self, *args):
"""Save as much state as possible for the session manager"""
dbg('preparing session manager state')
# FIXME: Implement this
def die(self, *args):
"""Die at the hands of the session manager"""
dbg('session manager asked us to die')
# FIXME: Implement this
def register_window(self, window):
"""Register a new window widget"""
if window not in self.windows:
dbg('Terminator::register_window: registering %s:%s' % (id(window),
type(window)))
self.windows.append(window)
def deregister_window(self, window):
"""de-register a window widget"""
dbg('Terminator::deregister_window: de-registering %s:%s' %
(id(window), type(window)))
if window in self.windows:
self.windows.remove(window)
else:
err('%s is not in registered window list' % window)
if len(self.windows) == 0:
# We have no windows left, we should exit
dbg('no windows remain, quitting')
gtk.main_quit()
def register_terminal(self, terminal):
"""Register a new terminal widget"""
if terminal not in self.terminals:
dbg('Terminator::register_terminal: registering %s:%s' %
(id(terminal), type(terminal)))
self.terminals.append(terminal)
terminal.connect('ungroup-all', self.ungroup_all)
def deregister_terminal(self, terminal):
"""De-register a terminal widget"""
dbg('Terminator::deregister_terminal: de-registering %s:%s' %
(id(terminal), type(terminal)))
self.terminals.remove(terminal)
if len(self.terminals) == 0:
dbg('no terminals remain, destroying all windows')
for window in self.windows:
window.destroy()
else:
dbg('Terminator::deregister_terminal: %d terminals remain' %
len(self.terminals))
def new_window(self, cwd=None):
"""Create a window with a Terminal in it"""
maker = Factory()
window = maker.make('Window')
terminal = maker.make('Terminal')
if cwd:
terminal.set_cwd(cwd)
window.add(terminal)
window.show(True)
terminal.spawn_child()
return(window, terminal)
def create_layout(self, layoutname):
"""Create all the parts necessary to satisfy the specified layout"""
layout = None
objects = {}
self.doing_layout = True
layout = copy.deepcopy(self.config.layout_get_config(layoutname))
if not layout:
# User specified a non-existent layout. default to one Terminal
err('layout %s not defined' % layout)
raise(KeyError)
# Wind the flat objects into a hierarchy
hierarchy = {}
count = 0
# Loop over the layout until we have consumed it, or hit 1000 loops.
# This is a stupid artificial limit, but it's safe.
while len(layout) > 0 and count < 1000:
count = count + 1
if count == 1000:
err('hit maximum loop boundary. THIS IS VERY LIKELY A BUG')
for obj in layout.keys():
if layout[obj]['type'].lower() == 'window':
hierarchy[obj] = {}
hierarchy[obj]['type'] = 'Window'
hierarchy[obj]['children'] = {}
# Copy any additional keys
for objkey in layout[obj].keys():
if layout[obj][objkey] != '' and not hierarchy[obj].has_key(objkey):
hierarchy[obj][objkey] = layout[obj][objkey]
objects[obj] = hierarchy[obj]
del(layout[obj])
else:
# Now examine children to see if their parents exist yet
if not layout[obj].has_key('parent'):
err('Invalid object: %s' % obj)
del(layout[obj])
continue
if objects.has_key(layout[obj]['parent']):
# Our parent has been created, add ourselves
childobj = {}
childobj['type'] = layout[obj]['type']
childobj['children'] = {}
# Copy over any additional object keys
for objkey in layout[obj].keys():
if not childobj.has_key(objkey):
childobj[objkey] = layout[obj][objkey]
objects[layout[obj]['parent']]['children'][obj] = childobj
objects[obj] = childobj
del(layout[obj])
layout = hierarchy
for windef in layout:
if layout[windef]['type'] != 'Window':
err('invalid layout format. %s' % layout)
raise(ValueError)
dbg('Creating a window')
window, terminal = self.new_window()
window.create_layout(layout[windef])
if layout[windef].has_key('position'):
parts = layout[windef]['position'].split(':')
if len(parts) == 2:
window.move(int(parts[0]), int(parts[1]))
if layout[windef].has_key('size'):
parts = layout[windef]['size']
winx = int(parts[0])
winy = int(parts[1])
if winx > 1 and winy > 1:
window.resize(winx, winy)
def layout_done(self):
"""Layout operations have finished, record that fact"""
self.doing_layout = False
for terminal in self.terminals:
if not terminal.pid:
terminal.spawn_child()
def reconfigure(self):
"""Update configuration for the whole application"""
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if self.config['handle_size'] in xrange(0, 6):
gtk.rc_parse_string("""
style "terminator-paned-style" {
GtkPaned::handle_size = %s
}
class "GtkPaned" style "terminator-paned-style"
""" % self.config['handle_size'])
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gtk.rc_reset_styles(gtk.settings_get_default())
# Cause all the terminals to reconfigure
for terminal in self.terminals:
terminal.reconfigure()
# Reparse our keybindings
self.keybindings.configure(self.config['keybindings'])
# Update tab position if appropriate
maker = Factory()
for window in self.windows:
child = window.get_child()
if maker.isinstance(child, 'Notebook'):
child.configure()
def create_group(self, name):
"""Create a new group"""
if name not in self.groups:
dbg('Terminator::create_group: registering group %s' % name)
self.groups.append(name)
def ungroup_all(self, widget):
"""Remove all groups"""
for terminal in self.terminals:
terminal.set_group(None, None)
self.groups = []
def closegroupedterms(self, group):
"""Close all terminals in a group"""
for terminal in self.terminals:
if terminal.group == group:
terminal.close()
def group_hoover(self):
"""Clean out unused groups"""
if self.config['autoclean_groups']:
inuse = []
todestroy = []
for terminal in self.terminals:
if terminal.group:
if not terminal.group in inuse:
inuse.append(terminal.group)
for group in self.groups:
if not group in inuse:
todestroy.append(group)
dbg('Terminator::group_hoover: %d groups, hoovering %d' %
(len(self.groups), len(todestroy)))
for group in todestroy:
self.groups.remove(group)
def group_emit(self, terminal, group, type, event):
"""Emit to each terminal in a group"""
dbg('Terminator::group_emit: emitting a keystroke for group %s' %
group)
for term in self.terminals:
if term != terminal and term.group == group:
term.vte.emit(type, event)
def all_emit(self, terminal, type, event):
"""Emit to all terminals"""
for term in self.terminals:
if term != terminal:
term.vte.emit(type, event)
def do_enumerate(self, widget, pad):
"""Insert the number of each terminal in a group, into that terminal"""
if pad:
numstr = '%0'+str(len(str(len(self.terminals))))+'d'
else:
numstr = '%d'
terminals = []
for window in self.windows:
containers, win_terminals = enumerate_descendants(window)
terminals.extend(win_terminals)
for term in self.get_target_terms(widget):
idx = terminals.index(term)
term.feed(numstr % (idx + 1))
def get_target_terms(self, widget):
"""Get the terminals we should currently be broadcasting to"""
if self.groupsend == self.groupsend_type['all']:
return(self.terminals)
elif self.groupsend == self.groupsend_type['group']:
termset = []
for term in self.terminals:
if term == widget or (term.group != None and term.group ==
widget.group):
termset.append(term)
return(termset)
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else:
return([widget])
def get_focussed_terminal(self):
"""iterate over all the terminals to find which, if any, has focus"""
for terminal in self.terminals:
if terminal.flags()&gtk.HAS_FOCUS:
return(terminal)
return(None)
def focus_changed(self, widget):
"""We just moved focus to a new terminal"""
for terminal in self.terminals:
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terminal.titlebar.update(widget)
return
def describe_layout(self):
"""Describe our current layout"""
layout = {}
count = 0
for window in self.windows:
parent = ''
count = window.describe_layout(count, parent, layout, 0)
return(layout)
# vim: set expandtab ts=4 sw=4: